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TitleGroundwater prospects in the Oak Ridges Moraine area, southern Ontario: application of regional geological models
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AuthorSharpe, D R; Dyke, L D; Hinton, M J; Pullan, S E; Russell, H A J; Brennand, T A; Barnett, P J; Pugin, A
SourceCurrent Research/Recherches en cours; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1996-E, 1996 p. 181-190, (Open Access)
PublisherNatural Resources Canada
Mediapaper; digital; on-line
RelatedThis publication is contained in Geological Survey of Canada; (1996). Current Research, Geological Survey of Canada, Current Research no. 1996-E
File formatpdf (Adobe)
NTS30M/13; 30M/14; 30M/15; 30M/16; 31C/04NW; 31C/04SW; 31D/01; 31D/02; 31D/03; 31D/04; 31D/06
AreaLake Scugog; Newmarket; Bowmanville; Lake Ontario
Lat/Long WENS-80.0000 -77.7500 44.5000 43.7500
Subjectssurficial geology/geomorphology; hydrogeology; groundwater; modelling; channel deposits; tills; glacial deposits; lithology; aquifers; moraines; groundwater resources; seismic profiles; seismic reflection surveys; seismic surveys; geophysical surveys; sands; gravels; water wells; Oak Ridges Moraine; Halton Till; Kettleby Till; Newmarket Till; aquitards; Quaternary
Illustrationssketch maps; seismic profiles; cross-sections; models
ProgramOak Ridges Moraine NATMAP Project
Released1996 08 01
AbstractA geological model is presented for the glacial deposits of the Oak Ridges Moraine area of southern Ontario. The model contains four units as well as incised channels dissecting the strata. Channels eroded through the Newmarket Till, a regional aquitard, provide hydraulic connection between the aquifers of the overlying Oak Ridges Moraine and those of the underlying lower drift. Buried channels filled with silt, sand, and gravel, and preferentially oriented north-northeast-south-southwest, are indicated by drill core and seismic reflection profiles. The model, with two successful case studies, has significant implications for groundwater resource development in the Greater Toronto Area. Groundwater flow to the lower drift may occur through channels so that groundwater resources in the lower drift may be more productive than previously suggested. Gravel sequences within channels may be targets for high yield wells. Further investigations are required to examine buried channel locations, distribution, and sediment fill.